Longines Legend Diver 39mm: Dual ISO 6425 and ISO 764 Certification
Longines Legend Diver 39mm: Dual ISO 6425 and ISO 764 Certification
Longines has expanded its Legend Diver collection with new 39mm models featuring earth-tone dial colors. According to aBlogtoWatch, these watches carry both ISO 6425 dive watch certification and ISO 764 antimagnetic resistance certification.
Comprehensive ISO Certifications
The Longines Legend Diver 39mm achieves dual certification under two important ISO standards:
- ISO 6425 - International standard for dive watches
- ISO 764 - International standard for antimagnetic watches
According to aBlogtoWatch, Longines has taken additional steps to exceed the ISO 764 standard, with the silicon balance spring and other components delivering ten times the magnetic resistance required by the standard.
Heritage Design with Modern Certification
The Legend Diver collection, introduced in 2007, was inspired by the 1959 Longines Super-Compressor dive watch ref. 7042. The 39mm case size was introduced in 2023, and for 2024, Longines has added new dial colors while ensuring full ISO 6425 compliance.
ISO 6425 Compliance Features
The Legend Diver 39mm meets all ISO 6425 requirements:
- Unidirectional internal rotating bezel
- Luminescent hands, indexes, and bezel marker
- 72-hour power reserve for extended diving
- Silicon balance spring for antimagnetic properties
- Chronometer-rated movement
- Double screw-in crowns for bezel and crown operation
Technical Specifications
| Feature | Specification |
|---|---|
| Case Diameter | 39mm |
| Movement | ETA-based Caliber L888.6 |
| Power Reserve | 72 hours |
| Certifications | ISO 6425, ISO 764 |
| Magnetic Resistance | 10x ISO 764 standard |
| Bezel | Internal bidirectional rotating |
| Crystal | Box sapphire |
| Crowns | Double screw-in |
New Earth-Tone Dial Colors
The 2024 Legend Diver 39mm introduces three new solid lacquered dial colors:
- Green - Rich, deep forest tone
- Terracotta - Coppery, warm earth tone
- Anthracite Gray - Sleek, sophisticated neutral
These complement the existing black and blue dial options, all featuring rhodium-plated hands and markers with Swiss Super-LumiNova treatment.
ISO 764 Antimagnetic Excellence
According to aBlogtoWatch, the Caliber L888.6 achieves remarkable antimagnetic performance:
- Silicon balance spring provides superior magnetic resistance
- Delivers ten times the magnetic resistance required by ISO 764
- Chronometer-rated for precision timekeeping
- 72-hour power reserve for extended wear
Design Elements and Build Quality
The Legend Diver 39mm features:
- Shorter, slightly curved lugs for improved wrist comfort
- Box sapphire crystal for vintage aesthetic
- Cross-hatch double screw-in crowns at 2 and 4 o'clock
- Micro-adjustment clasp on steel bracelet
- No date display for improved dial symmetry
Pricing and Availability
The new dial colors are available online now at $3,400 USD on a stainless steel bracelet with polished grains-of-rice center links.
Frequently Asked Questions
What is ISO 764 certification?
ISO 764 is the international standard for antimagnetic watches, specifying resistance to magnetic fields that could affect timekeeping accuracy.
How does the Legend Diver exceed ISO 764?
The silicon balance spring and other components deliver ten times the magnetic resistance required by ISO 764, providing exceptional protection against magnetic interference.
Is the Legend Diver suitable for diving?
Yes, with ISO 6425 certification, the Legend Diver meets all requirements for professional dive watches including water resistance, bezel functionality, and underwater legibility.
Source: aBlogtoWatch